diff --git a/src/ioc/misc/iocInit.c b/src/ioc/misc/iocInit.c
index f13cf6bb3..a98bfea7f 100644
--- a/src/ioc/misc/iocInit.c
+++ b/src/ioc/misc/iocInit.c
@@ -94,6 +94,7 @@ int iocBuild(void)
         errlogPrintf("iocBuild: IOC can only be initialized once\n");
         return -1;
     }
+    errlogInit(0);
     initHookAnnounce(initHookAtIocBuild);
 
     if (!epicsThreadIsOkToBlock()) {